Guard-lock for automobile-tires.



G. W. BURKS & W. C. SUPPLER.

GUARD LOCK FOR AUTOMOBILE TIRES.

APPLICATION FILED AUGJI, 19]].

.PatntedSept. 24, 1918,.

anoaen'w. BURKS AND-WILLIAM o. surrnnn, or BIRMINGHAM, ALABAMA.

GUARD-LOCK FOR AUTQMOIBILE-TIRES.

Specification of Letters Patent; Patented Sept. 24, 1918 Application filed August 11, 1917. Serial No. 185,750.

To all w'fkom it may concern:

Be 1t known that we, GEOIEGE W. BURKS and WILIJAM'C. SUPPIER,'01tlZeI1S of the United States-of America, residing at Birmingham in the'county of J eiferson and 'to prevent access to the nut to loosen it.

Our preferred-arrangement is to adapt the guard to interlock with a clamp, such as is in general use, to secure a demountable rim on the wheel felly, the guard covering and holding the nut against turning on the bolt that secures the clamp to thefelly. The application of our invention can be widely varied and the key controlled lock employed ma be of any desired type.

's illustrative of the preferred embodiments of our invention, reference is made -to the accom' anying'drawings, in which:-

Figure 1 s owe a cross section through a wheel r1m having a pneumatic tire thereon carried-on a demountable run.

Fig. 2 isan enlarged side elevation of the clamp and nut guard assembled.

Fig; 3 is a plan view of the guard. Fig. 4 is a plain view of the clamp. Fig. 5 's a sectional view taken on the' line 55 of Fig. 2; and

Fig. 6 is a vertical sectional'view illustratin a modified type of lock for the guard. imilar reference numerals refer to similar parts throughout the drawings.

We have shown our invention adapted to prevent the removal of a rim clamp 1 whichmay be of'any one of the various types such as are in general use for the. pur ose of securing to the folly rim 3 by which t e pneumatic t1re 4is carried. As'illustrated, the rim is held in place between clamps arranged on opposite sides of the felly and held "by a bolt 5 thatis passed through both clamps and the felly and has a nut 6 threaded on one endthere- 2 ademountab e clencher' of. The clamp against which the nut 6 abuts is made slightly difierent from the ordinary clamps in that it has a base exten sion 7 and hasits side edges undercut to form faces 8 inclined toward the folly. The body of the clamp has a hole. 9 for the bolt 5' and the extension? 'has a hole 10 therein. The uard for lockingand preventing the removal of the 'nut 6 comprises a body portion 11 having therein a recess or-seat 12 which opens through its outer end and throughits inner face and is of such size as to snugly receive the nut 6, as will be seen more clearly in Figs. 5 and 6. The body is provided with undercut side flanges 13 which areadapted .to interfit with the. edges 8 to form adove-tail joint with'the sides of the clamp when the guard is slippedendwise over the clamp; The dove-tailjoiriti prevents the guard moving in any direction on the clamp except lengthwise thereof. The guard has' an extensionliof reduced thickness which when .in position lies flush against the clamp extensigrt'? and has a hole 15 adaptedto register with the hole 10 in the clamp so that the staple 16 of a pad lock 17 can be passed through. the two holes and the guard locked securely a ainst relative movement on the clamp. W'l 1en so applied it will be obvious that the guard is held nut cannot be turned in the recess 12 to effect the removal of the clamp '1.

In Fig.6 the guard 11 is secured in place by a modified form' of lockwhich as shown comprises aYale lock barrel 18 made fast in a suitable chamber in the body portion- 19 of' the guard and provided'with a rotary latch-member 20 adapted to be turned by a key 21 to engage in a slot 22 inthe extension 7 of the clamp and when so locked the guard cannot be shpped'lengthwise to disengage it from the'clamp andexpose the nut.

In' operation,' one or more of; our special clamps are applied to'secure the tire rim' in place on the wheel or spare rim and when it is desired to lock the' r m against removalv vthe nut that, secures each special clamp in place is turned to brin its'side faces into parallelism with the si es of the clamp and then a guard is sli pedon the clamp end.- wise from the .hu toward the rim and caused to interlock with a, dove-tail joint with side edges of the clamp and toreceive the nut in its guard recess l2yfifter which agaigst movement in any-direction and the' i erates each guard is locked in place and rim cannot thereafter be're'moved until the several-guardsare unlocked.

It is within the contemplation of our invention that our improved type of nut lock and guard may be modified for application to any nut or equivalent fastening which may be relied upon to hold the tire to the rim or felly as the case may be, and-that the construction of our guard may be widely varied without departing from the spirit of our invention. v v I Having thus described our invention, What we claim as new and desire to secure by Letters Patent, is l 1. The combination of a membersecured I "by a nut and bolt and having side flanges, of a nut guard'recessed to house the nut and f having its sides shaped to slide into interlocked relationship with said flanges when it prevents; the nut turning, and a key con trolled lock to fasten the said member and Q gu'ardin interlocked relationship.

inner locking extension, a nut guard adapted 2. In a mechanism for preventing the un authorized removal of demountable wheel rims,-the combination of a demountabl'e rim clamp having undercut side edges, a nut guard having side flanges adapted to-slid-" ably interlock with the clamps undercut. 30

edges, and key controlled means to. positively lock the guard: and clariip-ihinteb locked relationship. 1" 3. in a mechanism.for'preventing the 1111-- authorized removal of demountable wheel rims, the combination of a demountable rim clamp having undercut side flanges and an to'interl 'k with a dovetail joint-with said clamp'flanges. and to overlap said inner 'ex tension, said guard and clamp extension having co-acting key controlled locking means to hold said members when interlocked against relative-movement.

d. A nut guard'ha" 'ng a met llicbody recessed in its inner-faceto house a nut and havingundercut side flanges, anda key conand the tire i parallel undercut side edges, lip at one end of the clamp and an' extension' at the opposite end of the clamp beyond 'ing means trolled lock carried by said guard and adapted to engage as a keeper a member interlocked with said'fianges.

5. In a guard for rim clamp nuts, a bodyhaving in one face a countersunk recess which opens through an end wall and is adapted to fitover and house a nut to prevent accessto the nut to loosen it, and key controlled means adapted to engage and lock the guard to a rim clamp with its recessed face in fixed position over the nut that secures said clamp. i

- 6.In combination, .a. demon'ntable rim fclamp having undercutyside edges and an 1 elongated end extension toward the wheel hub, a nut guard havinga wide bodyprovidedwith ofl'set flanges adapted to be slid Lmountable rim clamp comprising a felly en;

having a central bolt hole e s ng y a rimenfgagmg its nndercut side edges, said extension carryto cooperate with a look upon an dove-tail engagement with said element in .clamps undercut side edges.

In testimony'whereof we aflix our signatures.'-' g v GEORGE -W. BURKS;

v WI'LHAM G. Witness:

NoMni WELSH. 

